Home / 7,746.24-11,619.81-2,815.86

Finding the Fourth Proportional to 7,746.24, 11,619.81 and 2,815.86

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Solution

The fourth proportional to 7,746.24, 11,619.81 and 2,815.86 is: 4,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,746.24 : 11,619.81 = 2,815.86 : x
  2. Step 2: Convert to fraction form
    7,746.24/11,619.81 = 2,815.86/x
  3. Step 3: Cross multiply
    7,746.24x = 11,619.81 × 2,815.86
  4. Step 4: Simplify right side
    7,746.24x = 32,719,758.19
  5. Step 5: Solve for x
    x = 32,719,758.19/7,746.24
  6. Step 6: Final answer
    x = 4,223.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.